Unit 1.1: The nervous system

The main 3 parts of the nervous system are

• The heart

• The spinal cord

• The nerves

• The brain

Our nervous systems controls

• Our thoughts

• Our emotions

• Our actions

• All three

The spinal cord

• Keeps our body straight

• Connects our head to our back

• Carries messages to and from the brain

Our nerves sends and receives messages through

• our fingers

• our spinal cord

• our eyes

• our lungs

How many estimated nerve cells are there in our bodies?

• 100 million

• 2 trillion

• 1 billion

• 349 thousand

What does the brain do?

• It controls all bodily functions

• It controls some bodily functions

• It controls no bodily functions

• It controls all bodily functions but only after snack time

The function of our nervous system is to control bodily functions and reactions?

• True

• False